Oar-lock



(Model.)

J W. NORGROSSt OAR LOCK. N0. 248,780. Patented Oct. 25,1881.

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JOSEPH W. NOROROSS, OF LOOKPOR'I, NEW YORK.

OAR-LOCK.

SPECIFICATION forming part of Letters Patent No. 248,780, dated October 25, 1881. Application filed July 16, 1881. (Model.)

To all whom 'it may concern Be it known that I, JosEPn W. Nonouoss, a citizen ofthe United States, residing at Lockport, in the county of Niagara and State ot New York, have invented new and useful Improvements in Rowlocks, of which the following is a specification.

rIhis invention relates to a rowlock which, together with its supporting-plate, can be unshipped, so as to leave the edge ofthe gunwalerail free from any projection against which a rope can catch. rIhe particular construction ot my rowlock, and of the devices for fastening and releasing the same, are pointed out and explained in the following specillcation.

This invention is illustrated in the accompanying drawings, in which Figure l represents a sectional inside view of my rowlock. Fig. 2 is a horizontal section ot' the same in the plane x x, Fig. 1. Fig. 3 is au outside view of the same. Fig. 4 is a transverse vertical section in the plane y y, Fig. 3. Figs. 5, 6, 7, and S show the parts ot' my rowlock detached from each other. A

Similar letters indicate corresponding parts.

In the drawings the letter A designates the gunwale of a boat, and B is the gunwale-rail which supports the rowlock.

My rowlock consists of the horns O, which are provided with a stem, a. In this stem is bored an axial hole, b, Fig. 5, and from its end projects a circular flange, c, Figs. 4 and 6. D is the base-plate of my rowlock. (See Fig. S.) From this base-plate rises a pin, d, Fig'. 4,which engages with the hole b in the stem ot' the horns O, and on said base-plate is rmly secured a cap, E, Fig. .7, which catches over the circular flange c, so that the horns revolve on the pin d, and are held down upon the base-plate by the cap E. 4

The circular liange c may be cast solid with the stem of the horns, and in this case the cap E must be made in two halves; but I prefer to make the circular ilange separate from the stema, and secure itthereto,byrivetingorotherwisc, after the stem has been passed through the cap E, which in this case is made in one piece. (See Fig. S.)

From the base-plate D extend two lugs, e c, which engage with holes ff, formed in a plate or bracket F that is firmly secured to the outside ofthe gunwale-rail B. Fromv this bracket extends a bar, G, through the gunwale-rail, Fig. 4, and the base-plate D is provided with a downwardly-projecting flange, g, Figs. l, 4, and 8, which has a tiat eye, h, to catch over the bar G, Fig. 4.

On the ange g is secured a sliding bolt, i, which,when the rowlock is in position, engages with an eye in the bar G, Figs. 1 and 4. By means ot' the lugs c e, bracket F, har G, and bolt z', therefore, my rowlock is firmly secured to the gun Wale-rail B, and ifthe bolt t' is raised, the rowlock-that is to say, the horns, the baseplate D, and the cap E-can be readily unshipped, leaving only the bracket F on the gunwale-rail, and this bracket is made in such a torni that it is not liable to catch in a rope which may sweep over the gunwale. In this respect my present invention is superior to that described in my Patent No. 44,446, dated September 27, 1864, in which the horns revolve in a supporting-plate which is fastened to the upper surface ot' the gunwale-rail, and which, when the horns are removed, is liable to catch ropes sweeping over the edges ofthe gunwales, thereby endangering the boats.

The rowlock which forms the subject-matter ot` my present invention is so constructed that it can be bodily removed or unshipped, horns, base-plate, and all, and no place is left for a rope to catch against and to swamp the boat. Besides this my new rowlock is simple in its construction, it requires comparatively little stock for its construction, it isl extremely durable, and readily attached to or detached from the gun Wale.

l/Vhat I claim as new, and desire to secure by Letters Patent, is

l. The combination of the bracket F and transverse bar G with the base-plate D, provided with a depending liange, g, through which the transverse bar projects, the horns swiveled on the base-plate andthe bolt engaging the outer end ot' the transverse bar, substantially as described.

2. The combination ofthe base-plate D,pro In testimony whereof I have hereunto set [o vided with the vertical pin d, the horns hzwmy hand and Seel in the presence of two sul ing a stem provided with an axial aperture, b, scribing witnesses. swiveled upon the said vertical pin, the annu- 5 lar flange c, secured ro the lower end of the JOSEPH 7. NORGROSS. [L. S.]

stem of the horns7 and the cap E, connected with the base-plate and confining the said an- Witnesses: nular flange, but permitting it to rotate with XV. HAUFF,

the horns7 substantially as described. E. F. KASTENHUBER. 

